The advantages of gas drilling are: high drilling efficiency, effectively controlling formation damage, preventing from lost circulation and adhesive drill pipe sticking.
气体钻井的优点有：钻井效率高、有效保护油气层、防止井漏和黏附卡钻。
If the formation water in Guantao formation is used as a source of water injection, swelling preventing agent shall be added to the injected water to prevent formation damage from hydrated clay swell.
若将馆陶组地层水作为注入水水源，必须在注入水中加入防膨剂以防止由于粘土水化膨胀而造成的地层伤害。
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